Dump body



Nov. 5, 1929.

R. E. SMITH DUMP BODY Filed March 1928 6 Sheets-Sheet 1 M T w we mu lay Mi. x-

A-r'roRNEYg NOV. v5, 1929. SMITH 1,734,054

' DUMP BODY Filed Marchv9, 1928 6 Sheets-Sheet 2 m INVENI'OR E iLPI-l E. 51mm.

ATTORNEY? Nov. 5, 1929. R. E. SMITH 1,734,054

' DUMP BODY Filed March 9, 1928 e sheets-sheet 3 R. E. SMITH Nov. 1929.

DUMP BODY Filed March 9, 1928 6 Sheets-Sheet 4 M ,R. n3 3 mn wm w n N E m w.

Nova 5, l

R. E. SMITH DUMP BODY Filed March 9, 1928 6 Sheets$hee1. 5

ATTORNEY R. E. SMITH Nov. 5, 1929.

DUMP Bony Filed March 9, 1928 e sheets-sheet 6 48 FIG.9

INV'EN'I'QR EAL/w E. sM/T/l.

ATTORNEY;

Patented Nov. 5 1929 ems STATES RALPH E. SMITH, OF GALI ON, OHIO, AS SIGNOR TO GALION METALLIC VAULT OF GALION, OHIO, A CORPORATION OF OHIO DUMP .BODY

Application filed March 9, 1928. Serial No. 260,507,

My inventionrelates to dump bodies.

t is the object of my invention to provide a dump body which can be elevated and lowered by a means which is flexible in one direction for telescoping andstoringpurposes, but which is inflexible in another direction for elevating purposes. It is my object to provide such a means in combination with the power device, pref erably driven from the engine of a truck for elevating the truck body.

It is a further. objectto provide means for automatically limiting the application of the power for elevating for lowering the body so, that each movement will be automatically terminated by disconnecting the power. Manual control is provided for applying this power for starting the elevating, but is so arranged as to not permit the elevating to be extended beyond a safe limit by the manual means. Likewise the lowering cannot be extended by the manual means beyond the safe lowering limit, but the manual means can start and stop the movement in either direction and can control the movement intermediate the starting and lowering limits.

Referring to the drawings: .Figure 1 is a side elevation showing the body in lowered position.

-Figure 2 is a side elevation partially in section, showing the body in elevated position. H

Figure 3 is a section on the line 3-3 of Figure 1.

Figure 4 is a section on the line 44 of Figure 3. j

Figure em a section on the line 5-5 of Figure 4. p 5

Figure 6 is a detail plan view of the connection between the roller frame rod and the upward movement gear shifting rod;

.Figure 7 is asection on the line. -7 of Figure'3, showing the gear mechanism and gear shifting mechanism.

Figure 8 is .a side elevation, in detail, of

the pivotally mounted roller frame. Figure 9 isa rear elevation thereof.

Figure 10 is a detail view of the clutch collar.

COMPANY,

Figure 11 is a section on thefline 11 -;11

of Figure 10. i Referring to the drawings in detail, 1 represents supplementary side me'mbers connected by the bolts 2, which are in spaced relationship and are mounted upon the usual truck frame, attached thereto by any de.- sired means such as .U bolts, .which are strapped around the supplementary "frame members 1 and connectedto the main frame. These details do not form any part of;the present invention but follow conventional practice. Between these side members 1 extends pivot shaft 3, on which are mounted pivot brackets on either side thereof, designated '4, the upper ends of which, as at 5, are attached to the frame member 6 of the truck body 7 The forward end of this truck body, when in horizontal position, has its bottom frame member 6 resting upon the transverseangle iron members 8 and 9.located in spaced .relationship transversely of the supplementary frame members 1 at the forward end thereof, adjacent the cab 10. T Between the supplementary frame -memlbers 1 carried on suitable transversesupports 11, is a trough 12 adapted to contain the elevating chain 13, which is telescoped therein. The forward end of this trough is turned upwardly, as at 14. The ,transverseangle irons 8 and 9 are connected together by longitudinally extending, spaced frame members 15 and 16, being connected thereto by suitable bolts 17 and angle irons 18. The forward end of the trough 14 is connected by thebolts 17 to the forward transverse frame membe]? 9. V i

Mounted on these longitudinally extending frame members ,15 and 16 are journal blocks 19 and 20 thatlare interconnected, by

ried the shaft 22, which is the driven shaft of'the combination. x

Mounted on this driven shaft is the chain the strap 21. In these journals there is'caractuating pinion 23, which is adapted jtoengage with the teeth 24 of the chain links 25, which are connected together by. the pivot bolts 26 passingthrough the projections 27 and theoverlapping ears 28 of alternate, adj a- VT vating member, as the upper end of the chain cent chain blocks; Pivotally mounted on either side of the pinion 23, on the shaft 22, are the side frame plates 29 and 30 of the swinging roller frame. The forward ends of these frames are interconnected by a guard plate 31. V

Within this guard plate 31 is a pair of transverse roller shafts 32 and 33, carrying rollers 34 .and35 which engage with the rear smooth surface 36 of the chain blocks. These blocks are so arranged as to permit of movement towards each other in one direction but are prevented from movement toward each other in the other direction heyond a plane running through the longitudinal axes of the blocks so that in one direction the blocks, when so moved, present a stiff, rigid structure in a single plane, but in the ot er direction may be bent to follow around "go the rollers and dpinion 23.

The lower en of these side frames 29 and 30,'designated 36, carry a roller shaft 37 which in turn supports a roller 38 below the "inion 23 that engages the toothside of the Blocks ofthe'chain, causing the blocks to make a s ubstantially right angle turn about 7 the center of the shaft 37 as the blocks move from the telescoping trough 12 in a horizontal plane to a vertical and substantially rearwardly extending plane necessary for the elevati'on of the forward end of the truck body, to which the upper block is pivoted in the 7 following manner. I p

The upper block is pivoted to a bolt 39, which bolt is carried in the ears 40 between which the upper end of the block projects. These ears 40 are mounted upon a pivot block 41 adapted to have some lateral movement by reason of the cutaway portions 42 where the block is pivoted upon the shaft 43 carried in the ears 44 of the plates 45, which are bolted by the bolts 46 to the bottom of the forward end of the dump body.

This block 41 is provided with a depending finger 47 that serves to maintain the block in its proper predetermined position, as will be seen in Figure 4, so that it cannot buckle with respect to the next block and the initial stages of elevating the body.

The purpose of pivotally mountingrthe roller frame side plates 29 and 30 is to permit V throws the clutch so that the shaft 22 will of the movement of these plates and frame with the rollers to cause the chain to'niaintain itself in the same plane as a stiff elemoves backwardly due to the arcuate movement of the body, to which it is attached,

7 which is remotely pivoted on the rod 3 at the 00 rear end of the truck.

To insure this coordinated movement I have 7 provided thefollowing mechanism. The upper end of the frame is connected to a yoke 48, the'pivoting being at 49. The free'end .65 or this-y ke i a -we Connected a thereby permit the chain to buckle during.

the rod 79, again shifting the clutch to neutral forming an eye 54. Through this eye 54 is projected a clutch shifting rod 55 having a head 56 adapted upon occasion'of the body reaching its uppermost position to engage with the side 57 of the eye 54, so thatthe continued upward movement of the body serves to pull the upwardly moving clutch shifting rod-55, thereby bringing about a declutching of the power line and a cessation ofupward movement on the part of the body.

This rod 55 is connected at its lower end to a bell crank, being pivotally connected at 58 to the bell crank arm 59, which is pivoted at upon the gear casing 61. This arm 59 is also connected to the manually operated rod 62, which extends to a point adjacent the operator in the cab 10 in the usual manner. a

" This pivotal clutch shifting rod 60 is provided with a yoke 61 within the gear casing 61, and a notch 63 inwhich fits a plunger 64, spring pressed by the spring 65 to maintain it in neutral, elevating or lowering 'positions. The yoke 61 fits: within a groove 66 of a collar 67, which has side shoulders 68 and 69 for engaging withthe clutch pin 69 of the respective bevel gears 70 and 71, which are driven by the bevel pinion 72 by the power shaft 73 from the truck motor.

' This clutch sleeve 67 is mounted to turn with the shaft 74 and is splined thereon by the splinesleeve 75. The upper end of the shaft 74 is provided with a worm 76, which drives the worm gear .77, which is connected with a key 7 8 to the driven shaft 22.

When the truck body descends its bottom is adapted to engage with the top of the loweringmovement clutch shifting rod 79, which is connected atits lowerend to the arm of the bell crank, of which the arm 59 is the other half.

Method of-operation. V When the operator moves the rod 62 he be driven to elevate the roller chain through into position for lowering the body,and this operation will continue until the bottom of the body comes in contact with the top of inoperative position.

If the operator, during the course of either the upward movement or the downward movement, desires to halt the movement or reverse its direction, he can do so by operat ing the rod 62. I desire to comprehend within my invention such modifications as may beclearly embraced within the claims and the scope of my invention." Having thus fully described my invention, what'I claim" is new and desire to protect'by Letters Patent, isz 1 1. In combination, a supporting frame, a dump body pivoted thereon, means flexible in one direction and inflexible in another adapted to elevate said body, means for driving said means to raise and lower said body, and follow means for maintaining said elevating means in its stiff condition adapted to engage therewith to so maintain the elevating means, said follow means being pivotally mounted,'and means connected therewith and to thetruck body to synchronize the movement'of the follow means with the movement of the body and the movement of the elevating means.

2. In combination, aframe, means for re ceiving an elevating means within said frame, a truck body pivoted on said frame, an elevating means flexible in one direction adapted to'be telescoped within said frame and inflexible in the other direction for elevating the body, power means for actuating said elevating means from telescoping position to elevating position, follow means adapted to guide said elevating means relative to the power means and to maintai it in stifi condition as it moves upwardly and backwardly with the body, and means for moving said follow means in 'synchronism with the movement of the body. V

3. In combination, a frame, a body pivotally mounted on one end thereof for dump ing, means for. elevating said body connected to the forward end adapted to be telescoped'within said frame, flexible in one direction and inflexible in the other direction,

means for actuating said elevating means,

means to guide said elevating meansto-the actuating means, means to malntain' the elevating means in inflexible condition and in engagement with the actuating means and to I as a unit.

4. In combinatioma frame, a body pivotany mounted on one end thereof for dumping,

means for elevating said'body connected to the forward end adapted to be'telescoped within said frame, flexible i'n one direction and inflexible in theother direction, ineans'for actuating sald' elevating means, means to guide said, elevating means to the power means, means tomamtam the elevating means in inflexible condition and in engagement with the power mea ns andto prevent'its buckling, said guiding means and last-men tioned means being adapted to move asa unit, and means to move said unit in synchronism with the movement of the body'pivotally about the power means as applied to the elevating means; g 7

5. In combination,a frame, a dump body pivoted on one end thereof, means to support an elevating chain, an elevating toothand chain flexible in 'onedirection and inflexible in the other direction, a pinion adaptedto engage with the teeth of said chain, a pivotally-mounted guiding frame having rollers on opposite sides-of said chain adapted to guide said chain from itstelescoped position to its elevating position as actuated by power means, powermeans consisting of a pinion'in driving engagement with the teeth of the a chain, said chain being held in engagement with said'plnion by said rollers behind said chaln carried by sald guldlng frame, and a that as the chain moves upwardly and backwardly the frame will move with it. 6. In combination, a frame, a body pivoted thereon at the rear end thereof, means for carrying a flexible elevating toothed chain, a flexible elevating chain flexible in one di rection and inflexible in the other direction, having its free forward end connected to the forward end of'the body, a driving pinion adapted to engage with the teeth on said chain to elevate it, a guiding frame for said chain pivotally mounted, having a guiding roller to the rear of the chain below the pinion driving the chain to form a corner about which the chain in flexed condition will pass to the driving pinion into inflexed condition, and spaced guide rollers engaging the rear of said chain oppositely disposed from the driving pinion for maintaining the chain in inflexed condition at the pinion andbeyond to prevent the buckling of the chain, and means for causing said frame with its rollers to move synchronously about the point withthe movement of the truck body.

link connecting said frame and said body so 7 In combinatioma frame, a body pivoted I thereon at the rear end thereof, means for carrying a' flexible elevating toothed chain, a

flexible elevating chain flexible in one direction and inflexible in the other direction,having its free forward end connectedto the forward end of the body, a driving pinion adapted to engage with the teeth. onsaid chain to elevate it, a guiding frame for said chain pivotally mounted, having a guiding iroller'to the rear of, the chain below the pin' ion driving the chain to form a corner abeut and spaced guide rollers" engaging therea-r of said chain oppositely disposed from'the driving pinion for maintaining the chain in inflexed condition at the pinion and beyond to prevent theb-uckling of the chain, means for causing said frame with its rollers to move synchronously about the point of application of the power tosaid chain with the movementof the truck body, and means conmeeting the u per end of the chain to the truck body pivotally while preventing the buckling of the chain during the initial stages of elevation of the body. v

. 8. In combination, a frame, a body pivoted thereon at the rear end thereof, means for carrying a flexible elevating toothed chain, a flexible elevating chain flexible in one direction and inflexible in theother direction, having its free forward end connected to the forward end of the body, a driving pinion adapted to engage with the teeth on said chain to elevate it, a guiding frame for said chain pivotallyimounted, having a guiding roller to the rear of the chain below the pinion driving the chain to form a corner about which the chain in flexed condition will pass to the driving pinion ininflexed condition, and spaced guiderol lersengaging the rear of said chain oppositely disposed from the driving pinion for maintaining the chain in inflexed condition at the pinion and beyond to prevent the buckling. of the chain, means for causing said frame with its rollers to move synchronously about the point of application of the power to said chain with the movement of the truck body, means connecting the upper end of the chain to the truck body pivotally while preventing the bucklingof the chain during the initial stages of elevation of the body, said means consisting of a horizontally disposed link pivoted at one end to the body and at the other end to the chain having a limited movement out of the horizontal plane with: respect to the body, and a shoulder on the bottom thereof for engaging the back of the first link of the chain. a H I 9; In combination, a-frame, a truck body pivoted thereon, I means for supporting in telescoped position an elevating means connected with the forwar'diend of the body, said elevating means consisting of a plurality of chain links toothed on one side and flat on the other side, flexible towards the toothed side and inflexible towards the flat side, a driving pinion adapted to'move said elevatingm'eans in either direction when in inflexible position,

a guiding means for guiding the chain from flexible position into driven inflexible position 'and for maintaining thechain in inflexible position at and beyond the driving pinion, a

power means adapted to move the chain in either direction, aclutch for controlling said power means, means interconnecting said bodycand said chain, means to move said guiding means pivotally about the point of 7 application of power to the chain, means associated therewith for disconnecting the 10. In combination, a frame, a truck body pivoted thereon, means for supporting 1n telescoped position an elevating means connected with the forward end of the body, said elevating means consisting of a plurality of chain links toothed on one side and flat on the other side, flexible towards the toothed side and inflexibletowards the flat side, a'

driving pinion adapted tomove said elevating means in either direction when in inflexible position, a guiding means for guidingthe chain from flexible position into driven inflexible position and for maintaining'the chain in inflexible position at andbeyond the driving pinion, a power means adapted to move the chain in either direction, a clutch for controlling said power means, means interconnecting said body and said chain, means to move said guiding means pivotally about the point of application of power to the chain, means associated therewith for disconnecting the clutch at the end of the upwardmovement of the body, means adapted to engage the bottom of the body to disconnect the clutch at the end of the lowering movementof the body, and manually on erated means connected to said clutch tostart the elevating and lowering operations and to control them intermediate the ultimate accomplishment of. either one of said operations,

11. In combination, spaced supplementary frame-members adapted to be mounted upon a truck, a body pivoted onthe rear end thereof, a trough carriedtherebetween, means mounted thereon for supporting the forward end of the body, a driven shaft carried thereby having a pinion, an elevating chain flexible in one direction and inflexible in the other, adapted to be telescoped within said trough and to pass upwardly from the forward end of said, trough adjacent its point of connection to the forward end of the body, a guiding frame mounted onsaid v driven shaft pivotally having a guiding roller on the rear side of said chain below said driven shaft for causing the flexible chain to move from-flexible position :to inflexible position, and a pair of spaced rollers oppositely disposed from said pinion engaging therear of said. chain formaintaining the chain in inflexible posiition in driving engagementwith the pinion, a gearbox having gearing ,thereln adapted vto drive said driven shaft in either direction, a clutch therein adapted to determine the direction of movement of the driven shaft, an 'exteriorly located bell crank connected to said. clutch,ja guide frame rod'connecting said frame and the rear. end 'of said truck. body, aneye mounted on said rod, a clutch shifting rod slidably mounted in said eye for limiting the movement, connected at its free end to said clutch shifting bell crank to shift the clutch when the end of the rod engages with the eye on the guide frame rod at the end of the upward movement of the body, and a second clutch shifting rod connected to said bell crank adapted to engage the bottom of the body when it descends to its lowermost position to stop the lowering of the body.

12. In combination, spaced supplementary frame members adapted to be mounted upon a truck, a body pivoted on the rear end thereof, a trough carried therebetween, means mounted thereon for supporting the forward end of the body, a driven shaft carried thereby having a pinion, an elevating chain flexible in one direction and inflexible in the other, adapted to be telescoped within said trough and to pass upwardly from the forward end of said trough adjacent its point of connection to the forward end of the body, a guiding frame mounted on said driven shaft pivotally having a guiding roller on the rear side of said chain below said driven shaft for causing the flexible chain to move from flexible position to inflexible position, and a pair of spaced rollers oppositely disposed from said pinion engaging the rear of said chain for maintaining the chain in inflexible position in driving engagement with-the pinion, a gear box having gearing therein adapted to drive shaft pivotally having a guiding roller on the rear side of said chain below said driven shaft for causing the flexible chain to 'move from flexible position to inflexible position, and a pair of spaced rollers oppositely disposed from said pinion engaging the rear of said chain for maintaining the chain in inflexible position in driving engagement with the pinion, a gear box having gearing therein adapted to drive said driven shaft in either direction, a clutch therein adapted to determine the direction of movement of the driven shaft, an exteriorly located bell crank con nected to said clutch, a guide frame rod connecting said frame and the rear end of said truck body, an eye mounted on said rod, a clutch shifting rod slidably mounted in said eye for limiting the movement, connected at its free end to said clutch shifting bell crank to shift the clutch when the end of the rod engages with the eye on the guide frame rod at the end of the upward movement of the body, and a second clutch shifting rod connected to said bell crank adapted to engage the bottom of the body when it descends to its lowermost position to stop the lowering of the body, and means pivotally connecting the free end of the chain to the forward end of the body, having means to prevent the buckling of the chain adjacent the point of connection to the body.

In testimony whereof, I aflix my signature.

RALPH E. SMITH.

said driven shaft in either direction, a clutch V therein adapted to determine the direction of movement of the driven shaft, an exteriorly located bell crank connected to said clutch, a guide frame rod connecting said frame and the rear end of said truck body, an eye mounted on said rod, a clutch shifting rod slidably mounted in said eye for limiting the movement, connected at its free end to said clutch shifting bell crank to shift the clutch when the end of the rod engages with the eye on the guide frame rod at the end of the upward movement of the body, a second clutch shifting rod connected to said bell crank adapted to engage the bottom of the body when it descends to its lowermost position to stop the lowering of the body, and a manually operated rod connected to said clutch bell crank for controlling said clutch.

13. In combination, spaced supplementary frame members adapted to be mounted upon a truck, a body pivoted on the rear end thereof, a trough carried therebetween, means mounted thereon for supporting the forward end of the body, a driven shaft carried thereby having a pinion, an elevating chain flexible in one direction and inflexible in the other, adapted to be telescoped within said trough and to pass upwardly from the forward end of said trough adjacent its point of connection to the forward end of the body,

a guiding frame mounted on said driven 

